Metalloid germanium cluster shears for lanthanide diiodides

Klementyeva, Svetlana V.; Schrenk, Claudio; Zhang, Minghui; Khusniyarov, Marat M

doi:10.1039/d3dt00578j

Dalton Trans.

2023

DOI: 10.1039/d3dt00578j

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Metalloid germanium cluster shears for lanthanide diiodides

Svetlana V. Klementyeva

Claudio Schrenk

Minghui Zhang

et al.

Abstract: We report the synthesis and characterization of ionic compounds [(thf)4YbI]2[Ge9(Hyp)3]2 (1) and [(thf)5LnI]4[Ge9(Hyp)3]4 (Ln = Eu (2), Sm (3)), (Hyp = Si(SiMe3)3). All compounds were examined by UV-Vis spectroscopy and...

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2024

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A Series of Cyclopentadienyl Lanthanum Complexes with Metalloid Germanium Clusters

Woern,

Poddel’sky,

Mayer

et al. 2024

Inorg. Chem.

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A series of cyclopentadienyllanthanum complexes with the disilylated metalloid germanium cluster [Ge 9 (Hyp) 2 ] 2− [Hyp = Si(SiMe 3 ) 3 ] has been prepared and fully characterized. The synthetic procedure is based on the salt metathesis reaction of two different cyclopentadienyllanthanum diiodides CpLaI 2 (Cp: Cp*, pentamethylcyclopentadienyl; Cp ttt , 1,2,4-tri-tert-butylcyclopentadienyl) with K 2 [Ge 9 (Hyp) 2 ] in tetrahydrofuran (THF) with a subsequent extraction with n-hexane. The composition of the obtained compounds and the mode of coordination of the germanium cluster to the rare-earth metal are strongly influenced by the steric demand of the cyclopentadienyl ligands and the crystallization conditions. The centrosymmetric dimeric compounds with the common formula [CpLa(solv)(η 2,3 -Ge 9 (Hyp) 2 )] 2 [1, Cp = Cp*, solv− THF; 2, Cp = Cp ttt , solv−NCCH 2 C(Me)NSiMe 3 ] have been isolated by the slow evaporation of a n-hexane solution, while a mononuclear complex [Cp ttt La(THF) 2 (η 3 -Ge 9 (Hyp) 2 )] (4) was found by crystallization from THF. The repeated recrystallization of 1 from n-hexane afforded the asymmetric dimer [Cp*La(THF)(η 2,3 -Ge 9 (Hyp) 2 )][Cp*La(η 2,3 -Ge 9 (Hyp) 2 )] (3) with only one coordinated THF molecule.

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A Series of Cyclopentadienyl Lanthanum Complexes with Metalloid Germanium Clusters

Woern,

Poddel’sky,

Mayer

et al. 2024

Inorg. Chem.

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show abstract

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Metalloid germanium cluster shears for lanthanide diiodides

Abstract: We report the synthesis and characterization of ionic compounds [(thf)4YbI]2[Ge9(Hyp)3]2 (1) and [(thf)5LnI]4[Ge9(Hyp)3]4 (Ln = Eu (2), Sm (3)), (Hyp = Si(SiMe3)3). All compounds were examined by UV-Vis spectroscopy and...

Cited by 1 publication

References 55 publications

A Series of Cyclopentadienyl Lanthanum Complexes with Metalloid Germanium Clusters

A Series of Cyclopentadienyl Lanthanum Complexes with Metalloid Germanium Clusters

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